Adcom GFA-585se User Manual page 20

Power Rating (To FTC Requirements)
450 watts continuous average power into 8 ohms at any frequency between 20Hz and 20kHz
with both channels driven at less than 0.05% THD.
600 watts continuous average power into 4 ohms at any frequency between 20Hz and 20kHz
with both channels driven at less than 0.07% THD.·
1000 watts continuous average power into 8 ohms at any frequency between 20Hz and
20kHz at less than 0.10% THD, bridged.·
IM Distortion (SMPTE)
1 watt to 450 watts into 8 ohms
1 watt to 600 watts into 4 ohms
IM Distortion (CCIF, Any Combination from 4kHz to 20kHz)
350 watts into 8 ohms
450 watts into 4 ohms
THD + Noise at 450 Watts into 8 Ohms
20Hz
1kHz
10kHz
20kHz
THD + Noise at 600 Watts into 4 Ohms
20Hz
1kHz
10kHz
20kHz
IM Distortion, Bridged (SMPTE)
1 watt to 1000 watts into 8 ohms
IM Distortion, Bridged (CCIF, Any Combination from 4kHz to 20kHz)
1000 watts into 8 ohms
GFA-585se SPECIFICATIONS
18
≦0.03%
≦0.05%
≦0.03%
≦0.05%
0.020%
0.008%
0.030%
0.050%
0.04%
0.01%
0.05%
0.07%
≦0.10%
≦0.10%